Hong Kong is a compact city with good transport system, so it is easy to visit attractions & enjoy sightseeing even you can't stay for long time. Suggest you to explore:
1) The Peak
2) Victoria Harbour
3) Tian Tan Buddha
4) Po Lin Monastery
1) The Peak
2) Victoria Harbour
3) Tian Tan Buddha
4) Po Lin Monastery
5) Ocean Park
6) Temple Street night market
7) Ten Thousand Buddhas Monastery
8) The Hong Kong Museum of History
7) Ten Thousand Buddhas Monastery
8) The Hong Kong Museum of History